Setting up a group email account with different permissions

I understand that I need to set up individual accounts in the admin centre, but is it possible, if I set up a shared mailbox, for the users to access the shared mailbox directly without linking outlook to their individual accounts?
I want to keep the experience as "clean" as possible, and users already have their own personal accounts outside office 365. I don't want their outlook applications to be "cluttered" with redundant accounts which are not used.